433 MHz Devices

Guides to follow:

• https://static.xtremeownage.com/blog/2021/433mhz-automation/#installing-rtl_433
• https://www.reddit.com/r/homeassistant/comments/10pkerb/i_have_no_idea_how_to_use_rtl_433/
• https://www.youtube.com/watch?v=_COwsvkxyFA 
  

Multiple Frequencies:

• This setup can also be used for other frequencies at the same time too (915 and 868 are common frequencies): https://community.home-assistant.io/t/help-with-rtl-433-using-2-usb-dongles-for-433-and-915mhz/648432

  •  hop_interval 60

    frequency 915M

    frequency 433.92M 

• Or for better monitoring use multiple receivers
  

Purchase a SDR receiver: https://www.amazon.com/gp/product/B00P2UOU72/

Purchase some sensors:

• Temperature/Humidity:
  • AcuRite: https://www.acurite.com/shop-all/weather-instruments/weather-sensors-and-parts/sensors/indoor-outdoor-temperature-humidity-sensor.html
    • Sensor #2 without ABC since we don't need channel selection and it's cheaper
  • ecowitt: https://shop.ecowitt.com/products/wh31?variant=41418886316194
• Water:
  • Govee https://www.amazon.com/Govee-Wireless-Detector-Basement-Apartment/dp/B07V4R16HX?th=1 or https://us.govee.com/products/wireless-water-leak-detector?variant=41613921157305 
    • Verify these actually use 433, they may have changed to LoRa
• Motion Detection:

Install HA Add-On: Mosquito broker

Install rtl_443 Add-On Store (Settings > Add-ons > Add-on Store > 3Dot Menu > Repositories): https://github.com/pbkhrv/rtl_433-hass-addons

More info: https://community.home-assistant.io/t/home-assistant-add-on-rtl-433-with-mqtt-auto-discovery/260665 

Then Install Addons: rtl_433, rtl_433 MQTT Auto Discovery

 

Config example: https://github.com/merbanan/rtl_433/blob/master/conf/rtl_433.example.conf